The Leaning Tower of Pisa is 56.84 meters long. In the 1990’s, engineers restored the building so that angle y changed from 5.5° to 3.99°. To the nearest hundredth of a meter, how much did the restoration change the height of the Leaning Tower of Pisa?

The height of the tower is adjacent to ∠ y.
The length of the tower is the hypotenuse of the triangle created.